Cord-adjuster.



A. M. JOHNSON.

CORD ADJUSTER.

APPLICATION FILED MAR. 5, 1910.

Patented July 22, 1913.

7 s 94 W $-Z5J/Za/Z.

ANDREW M. JOHNSON, OF INDIANAPOLIS, INDIANA.

CORD-ADJUSTER.

Specification of Letters Patent.

Patented July 22, 1913.

Application filed March 5, 1910*. Serial No. 547,411.

To all whom it may concern:

Be it known that I, ANDREW M. JOHNSON, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Cord-Adj usters, ofwhich the following is a specification.

My invention relates to spherical cord adjusters, especially forelectric light cord, an object being to provide an efficient andconvenient device of cheap and durable construction, a further objectbeing to provide means for holding the cord and for releasing thepressure thereon at will so as to make adjustments easily and withoutinjury to the cord.

There are various cord adjusters in use but those that have come undermy observation are either severe on the cord destroying its insulationor do not retain it in adjustment.

In the accompanying drawings and following specification, my inventionis more fully described and pointed out particularly in. the claim, andsimilar numerals indicating similar parts throughout the differentfigures of the drawings.

Figure 1 shows the adjuster in position on a. portion of the cord 10;Fig. 2 is a sectional view on line 2-2; Fig. 3 is a sec tion on line3-3; Fig. 4 is a section on line 38; Fig. 5 is a view of springdetached.

The different parts of my invention are represented by differentnumerals and 1 is the body preferably of wood and spherical in form; 2,2 are parallel cord o gienings equidistant from center of the ballshaped body; 3 is a spring opening through the center of the body and atright angles to the cord openings 2, 2 and being preferably contractedin bore at f, a to form an annular rib by which is retained the pushbutton 5 provided with a suitable enlargement that said rib will hold itin place. The spring opening is of such proportions that it will cutequally into the openings 2, 2. The inner end of said push button 5 isprovided with a conical recess (3, the apex of which points outwardly ofthe body and is adapted to engage with the inwardly inclined end 7 ofeach of the springs 8 which are secured at opposite end to body in thepresent instance by having formed thereon a hookshaped bend 9 and atwhich point they are driven into said body or fastened in any othersuitable manner. The springs 8 lie in their normal position close to theedges of the opening 3, one at each side so that they will cut aconsiderable depth transversely into the bore of the openings 2, 2 asseen in Fig. 3 and where the movable ends 7 of said springs are seen toproject slightly into the recess 6 of said push button so that when saidbutton, is pressed inwardly as shown in Fig. 4t, said springs arepressed toward each other at the points 7 within. said recess 6 by whichaction the springs are also withdrawn from the bore of openings 2, 2;thus it is evident that when the cord is in place in this device as isshown in Fig. 1 practically filling the openings 2, 2 and the springs 8,8, are in their norn'ial position as in Fig. 3, that said springs willpress against the cord in both said openings 2, whereby it is held inadj ustment and vice versa, when it is desired to adjust it the pushbutton is pressed in firmly with one hand when the adjustment of thecord is readily effected by the other, and when pressure by the operatoron the push button is released, the springs force the push button backto normal position and engage the cord again and retain adjustment.

It is evident that any adjuster that upplies any friction whatsoeverduring ad justment, will in course of time when frequently adjust-edcause wear on the insulation of the cord and finally expose theconductor, causing short circuiting of electric current or rendering thedevice dangerous to the operator, and in my device there is no pressurewhatsoever possible during adjustment of the cord.

In the application of my device there are a number of deviations thatmay be resorted to and I desire to have it understood that I hold myselfat liberty to make all such alterations or deviations from the exactform and construction her-e shown as fall fairly within the spirit andscope of my invention as clain'led, and

hat I claim as new and desire to secure by Letters Patent is In a cordadjuster a suitable body having a pair of parallel. cord openingsthrough said body and a spring opening through said body cross-cuttingthe plane of and be tween former said openings and cutting into the boreof each thereof, springs mounted in said spring opening adapted to lieacross the bore of said cord openings and adapted to each other upon aninward movement of normally press against a cord extending said button.10 through latter said openings With suitable In testimony whereof Iafix my signature spring pressure, a push button with a re in presenceof tWo Witnesses.

duced outer and a recessed inner end and ANDREW' M. JOHNSON.longitudinally movable Within said spring Witnesses:

opening, the free ends of said springs en E. J. C. HOWE,

gaging in said recess and shiftable toward A. L. TEETOR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, I). G.

